EP1335330B1 - Entriegelungssystem einer Kraftfahrzeugöffnung - Google Patents

Entriegelungssystem einer Kraftfahrzeugöffnung Download PDF

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Publication number
EP1335330B1
EP1335330B1 EP20030290301 EP03290301A EP1335330B1 EP 1335330 B1 EP1335330 B1 EP 1335330B1 EP 20030290301 EP20030290301 EP 20030290301 EP 03290301 A EP03290301 A EP 03290301A EP 1335330 B1 EP1335330 B1 EP 1335330B1
Authority
EP
European Patent Office
Prior art keywords
lock
opening
unlocking
vehicle
power supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20030290301
Other languages
English (en)
French (fr)
Other versions
EP1335330A3 (de
EP1335330A2 (de
Inventor
Jean-Marc Belmond
Frédéric Burkat
Sylvain Chonavel
Yi Hwa Chu
Pascal De Vries
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inteva Products France SAS
Original Assignee
ArvinMeritor Light Vehicle Systems France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ArvinMeritor Light Vehicle Systems France SA filed Critical ArvinMeritor Light Vehicle Systems France SA
Publication of EP1335330A2 publication Critical patent/EP1335330A2/de
Publication of EP1335330A3 publication Critical patent/EP1335330A3/de
Application granted granted Critical
Publication of EP1335330B1 publication Critical patent/EP1335330B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/90—Manual override in case of power failure
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/01—Mechanical arrangements specially adapted for hands-free locking or unlocking
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00579—Power supply for the keyless data carrier
    • G07C2009/00603—Power supply for the keyless data carrier by power transmission from lock
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00777—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by induction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1044—Multiple head
    • Y10T292/1045—Operating means
    • Y10T292/1047—Closure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5889—For automotive vehicles
    • Y10T70/5973—Remote control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5889—For automotive vehicles
    • Y10T70/5973—Remote control
    • Y10T70/5978—With switch

Definitions

  • the invention relates to the field of locks of motor vehicles, and more specifically the unlocking locks equipping the opening of motor vehicles.
  • a lock of a motor vehicle allows the maintenance in the closed position of an opening; it also allows to unhook the opening by action on an inner or outer opening control connected to the lock and operable by a user.
  • a lock is typically mounted on the opening of the vehicle. It has a bolt whose function is to fix in relation to the lock a finger mounted on the vehicle, or unlike to release the finger.
  • the opening of the lock is called the action of releasing the finger, which allows the opening of the opening; conversely, locking the lock is known to hold the finger in the lock, which prevents the stall from opening.
  • the bolt is biased towards its closed position by the finger when closing the opening, a pawl prohibiting the return of the bolt to its open position and holding the lock in the closed position in the absence of external stress on the lock.
  • the use of a lock poses the following problems.
  • the presence of the lock is a strong architectural constraint: the introduction of an object in the seal of the window can allow a thief to act on the lock-lock connection.
  • This problem is solved by bringing the lock closer to the lock or by providing a connection between the lock and the lock that can not be manipulated through the window seal.
  • the solution generates a constraint on the relative position of the lock and the lock; in the other case, the solution generates a constraint on the type of link movement.
  • the position of the lock is also constrained by the need to allow the descent of the window.
  • a solution of rape is to tear the lock of the door: it is therefore proposed to provide around the lock reinforcement of the sheet constituting the door.
  • the vehicle marketed by Peugeot under the trademark 406 has a key provided with a transponder, that is to say, a passive circuit powered remotely and searchable remotely.
  • a transponder supply and interrogation circuit is provided in the vehicle and prevents starting in the absence of a transponder response; in this application the power supply and muting circuit is designed to interrogate the transponder when the key is in the vicinity of the steering wheel.
  • the circuit operates at frequencies close to 125 kHz, called low frequencies, with a range of about 5 cm.
  • FR-A-2 740 501 proposes a hands-free system for unlocking and / or opening the trunk of a motor vehicle.
  • One or two antennas are provided on the vehicle; presenting a transponder in front of the antenna or the antennas in a predetermined sequence causes the unlocking and / or opening of the trunk.
  • the system proposed in this document requires a battery supply of the vehicle for unlocking and opening and therefore involves providing the vehicle with a lock used in case of failure of the hands-free system.
  • US-A-5,134,392 discloses a keyless opening system.
  • the opening system uses a transmitter powered by a long life battery.
  • EP-A-0 694 644 proposes a lock with electric opening of a motor vehicle.
  • the opening of the lock is provided electrically by the operation of an actuator powered by the vehicle battery.
  • an emergency power source consisting of a battery backup located in the door with which the lock is associated. In case of malfunction of the supplied power supply the battery of the vehicle, the lock is likely to be opened through the power supply provided by the battery backup. This document is silent about the lock used.
  • This solution first poses a problem of sizing the engine opening the lock; indeed, the engine must allow not only the opening of the lock in normal use, but also the opening of the lock in degraded conditions, for example after an impact.
  • the motor and its gearbox are designed to allow opening in degraded conditions, which leads to oversized electrical and mechanical compared to the need in normal conditions.
  • the dimensioning of the engine therefore poses a problem for the emergency power supply; it must indeed be able to provide the engine with the energy necessary for opening under heavy load.
  • US-A-5,552,641 and EP-A-1 052 353 disclose automotive vehicle opening systems based on portable transmitters or transponders. These documents do not explain what type of lock is used for the vehicle.
  • WO-A-01 23695 proposes a transmitter for actuating a motor vehicle locking system. Contacts are provided on the transmitter, to compensate for a fault in the transmitter battery or vehicle.
  • EP-A-1 001 118 discloses a lock with electric opening and electric lock / unlock.
  • an electronic recognition device is associated with the lock to make it pass in a unlocked state when it recognizes an identifying device.
  • the recognition device transmits a unlocking signal which is simultaneously transmitted to an electromechanical unlocking device and to a motor of the electric lock.
  • the electric lock will open the door since it acts parallel to the unlocking device.
  • Document DE-A-196 00 524 describes a lock, in particular for motor vehicle doors.
  • This lock comprises a bolt cooperating with a locking latch, the bolt being adapted to be locked in a locking position by a pawl.
  • An adjusting device electrically brings the pawl into an open position by actuating a handle with a transmission device which brings the pawl into its open position by actuating the handle on an enlarged control area relative to an electric unlocking.
  • the lock also includes a mechanical transmission device for unlocking.
  • This mechanical transmission device is able to be actuated efficiently in the event of an incident, in particular when there is no electric power or in the event of a failure of the power supply, so that the ratchet is able to be actuated by the transmission device independently of the position of the adjustment device.
  • Document DE-A-100 48 709 discloses a vehicle door locking system comprising, in its basic structure, a lock consisting of a bolt and a pawl, as well as a control lever and an electric drive member. .
  • the electric drive member allows the electric opening of the lock.
  • a mechanical connection between the control lever and the lock can be arranged in such a way that the lock can be opened mechanically urgently.
  • the electric actuator is not only responsible for the electric opening of the lock but also couples the control lever to the bolt and / or the ratchet in the case of emergency opening.
  • the signal delivered under normal conditions may be a software unlocking signal of the electrical opening of the lock; it can also be a clutch signal of the mechanical opening of the lock.
  • the interrogation circuit can remotely power the portable object to the interrogation. It can also be provided that the portable object has contacts and that the interrogation circuit has contacts adapted to mate with the contacts of the portable object.
  • the system advantageously has a backup power supply separate from the main power supply of the vehicle; the interrogation circuit can then be powered by the emergency power supply.
  • the system may further comprise a unlocking mechanism receiving the unlocking signal from the interrogation circuit.
  • the unlocking mechanism can be connected to the emergency power supply.
  • This emergency electronics advantageously has a standby state which it outputs upon receipt of a signal from a sensor. actuating an inner opening control or an outer opening control.
  • the unlocking mechanism may comprise an electric motor with an electric power of less than 10 W.
  • the invention also proposes a door without lock having such a system and a vehicle having a door without lock and such a system.
  • the invention proposes, for the unlocking of an opening of a motor vehicle, to use a portable object powered interrogation. It is intended to interrogate the portable object an interrogation circuit, which is typically mounted on the door of the vehicle. The interrogation circuit is able to interrogate the object while it is outside the vehicle, while ensuring its power supply. If the results of the query show that the portable object has a Authorization of unlocking locks of the vehicle, the circuit provides the lock of the opening a signal allowing the unlocking.
  • the lock is an electric lock with a mechanical opening clutch. In normal operation, when the vehicle battery provides sufficient power, such a lock can be used as an electric lock. However, in the event of a power failure, the lock can be engaged using reduced power; this limits the electrical power needed to overcome the failures.
  • the system of the invention resists a failure of the (possible) power supply of the portable object, because the interrogation circuit is able to supply the object when it is outside the vehicle.
  • the system of the invention also resists a failure of the power supply of the vehicle, due to the mechanical opening of the electric lock clutch. It suffices to provide in the opening a low-power back-up power supply to enable clutching of the mechanical opening; alternatively, this mechanical opening can be permanently engaged, as explained with reference to FIG.
  • FIG. 1 is a block diagram of the various elements of a system according to one embodiment of the invention; a portable object 2 is represented in the figure.
  • the object is supplied with interrogation by the interrogation circuit: it is therefore capable of answering the interrogations of an interrogation circuit which supplies it, without which it is necessary that it presents a clean power supply such as a battery or a battery.
  • the power supply of the portable object can be provided remotely, i.e. without contact; a first solution is to use a transponder; a transponder has a coil which serves firstly for the remote power supply of the object by means of a magnetic field and secondly for the transmission of a response.
  • the transponder 1 shows the case of a transponder, with a coil 4 and a circuit 6 fed by the coil and capable of short-circuiting the coil for the transmission of a response.
  • the transponder can be powered remotely and interrogated at low frequencies, for example at a frequency of 125 kHz.
  • the portable object is powered by means of contacts, by providing corresponding contacts on the interrogation circuit; the interrogation is then advantageously performed by modulation of the supply voltage to limit the number of contacts.
  • the object could thus have the form of a card that would be introduced into a slot, for example between the door and the amount. This reading position of the card would protect the power contacts and / or interrogation of the card.
  • the portable object has a memory 8, dead, reprogrammable or more generally capable of storing an identifier even when the object is not powered.
  • the identifier is used to characterize the object.
  • the use of such an identifier stored in memory provides more combinations than the mechanical combinations of a key.
  • storage of the identifier on 15 bits provides more than 30,000 combinations, while the number of combinations of a mechanical key is of the order of 3000.
  • the memory 8 is connected to the circuit 6, so as to allow the interrogation of the circuit the transmission of the identifier from the portable object to the interrogation circuit. From this point of view, it is possible to use any appropriate interrogation protocol, providing, if necessary, encryption of the transmitted data, a rotating code, and all the security solutions known for other applications in the state of the art. For example, it can be used in case of receipt of N incorrect codes a temporary or permanent blocking of the door.
  • FIG. 1 is only a schematic representation; thus, the distinction between the circuit 6 and the memory 8 is made only for the clarity of the explanation, the circuit and the memory can be perfectly implemented with the aid of a single component. It is also possible to provide for the portable object to serve other purposes; it could thus be used for a command, providing, in addition to the circuit supplied to the interrogation just described, a battery or battery power and a high frequency transmission circuit. In this case, the circuit 6 could be powered by the battery or battery in normal mode and be powered by the interrogation circuit in case of failure of the battery or battery.
  • the system has an interrogation circuit 10 provided on the vehicle.
  • This circuit provides power to the portable object during the interrogation.
  • the power supply is provided by means of an antenna 12 emitting a magnetic interrogation field, which is used for feeding the coil and is modulated for interrogation.
  • the power supply 12 is controlled by a control logic 14; this logic controls the power supply of the portable object during the interrogation, the interrogation of the object and the answers provided by it. Depending on these responses, the logic 14 emits a signal of unlocking.
  • a control logic 14 controls the power supply of the portable object during the interrogation, the interrogation of the object and the answers provided by it.
  • the logic 14 emits a signal of unlocking.
  • a memory 16 storing an identifier and the interrogation of the portable object consists in comparing the identifiers of the memories 16 and 8; the unlocking signal is issued if the comparison shows that the identifiers are identical.
  • circuit 10 is also advantageous for the circuit 10 to be powered by a power supply 18 distinct from the main power supply of the vehicle; the presence of such a power supply - battery, battery, supercapacity or other - overcomes any failure of the main power of the vehicle. It can of course also provide that the circuit 10 is powered by the main power of the vehicle, or that the power supply 18 is used only in emergency, in case of failure of the main power supply.
  • Figure 1 still shows a mechanism of unlocking 20 of the vehicle door.
  • the mechanism 20 receives the unlocking signal emitted by the interrogation circuit 10 and proceeds to the unlocking of the door on reception of this unlocking signal.
  • FIG. 1 again shows that the unlocking mechanism 20 is powered by the power supply 18, at least in emergency mode. Once again, such a feed of the unlocking mechanism, distinct from the main power supply of the vehicle, ensures that the unlocking remains possible even when the main power supply of the vehicle is faulty.
  • a first solution is to use an electromechanical lock, in which the unlocking is provided by a specific motor.
  • the unlocking motor is typically a motor operating at a voltage of 6 V, with an electric power of 10 W.
  • An electric lock is used according to the invention, with an engageable mechanical opening.
  • Such a lock is described below with reference to Figures 2 to 5 and is described in more detail in the application filed by the plaintiff on the same day as the present application and entitled "Lock motor vehicle".
  • the unlocking signal simply causes the clutch of the mechanical opening, so that it is possible to open the door by mechanical action on the handle.
  • Figure 6 shows another example of an electrically opening lock with mechanical opening clutchable, which can also be used in a system according to the invention.
  • the emergency power supply can be made using a battery, a battery, a capacitor, providing a lower voltage This value allows, besides the activation of the unlocking mechanism, a power supply for interrogation and interrogation of the portable object.
  • the position of the interrogation circuit 10, the power supply 18 and the unlocking mechanism 20 may vary in the vehicle.
  • the only constraint is that the interrogation circuit must be able to supply and interrogate the portable object while he is outside the vehicle.
  • the interrogation circuit is located on a non-metallic part of the vehicle, such as a door handle, a door jamb trim, a protection strip, a mirror cover , optics, etc. Other positions may be preferred for other types of interrogation circuit, such as in the door seal discussed above.
  • the circuit 10 can also in this case be part of the main electronic door - while maintaining if necessary a separate power supply 18. This solution provides information to control a lock, especially in case of emergency .
  • the system described with reference to Figure 1 has the following advantages. It makes possible a unlocking even in case of failure of the main power of the engine. Due to the high reliability it offers - thanks to the emergency power supply - it is possible to completely remove the lock; it frees the design constraints of the door and limits the possibilities of violating the lock or the lock of the door.
  • a lock advantageous in the context envisaged is described below with reference to FIGS. 2 and following. It is a lock with electric opening, but has an opening mechanical clutch.
  • the mechanical opening can be engaged under the action of the interrogation circuit 10, to allow the opening of the door even in case of failure of the power supply of the vehicle.
  • Figure 2 is a schematic view of a lock according to one embodiment of the invention, in a closed position and locked.
  • the figure shows the bolt 32, which is rotatably mounted about an axis 34.
  • the rotation of the bolt 32 about the axis 34, in the opposite direction of the clockwise, allows the opening of the door as 3 or 5.
  • the bolt is biased by a spring in the direction of clockwise towards its open position.
  • the pawl prevents the opening of the door by holding the bolt on a finger not shown.
  • the exact shape of the bolt as its movement are known per se and are not described in more detail. They can also be modified without this having any effect on the operation of the lock.
  • FIG. 2 further shows a counter-catch 36 and a pawl 38.
  • the pawl and the pawl are rotatable about an axis 40.
  • the ratchet and the pawl are more clearly visible in FIG. are integral with one another: the use of two parts is advantageous for mounting constraints.
  • the rotation of the counter pawl 36 and the pawl 38 about the axis 40, in the counterclockwise direction, has the effect of allowing the counterclockwise rotation of the bolt 32, and therefore the opening of the lock.
  • the counter-pawl 36 has a substantially circular shape; it has a first span 42 and a second span 44. A support on one or the other of these ranges makes it possible to turn the pawl in the counterclockwise direction.
  • the pawl 38 is secured to the counter-pawl 36 so as to be rotated by the counter-pawl when it rotates in the opposite direction of clockwise. It has a finger 46, which comes into contact with the bolt to prevent its movement when the lock is closed and locked, in the position shown in Figure 2. The movement of the finger 46 releases in rotation the bolt, as shown in FIG. 5.
  • the pawl and the counter-pawl are biased by a not shown spring towards the closed and locked position shown in FIG. 1.
  • Figure 2 still shows a lever 48 manual or mechanical opening of the door.
  • the lever 48 is rotatably mounted about the axis 40 of the pawl; it is connected by a cable or rod 50 of external opening to an external opening control not shown. It is connected by an inner opening cable or rod 52 to an inner opening control, not shown. Actuation of the outer (respectively inner) opening control causes, by through the cable 50 (respectively 52) a rotation of the lever 48 around the second axis 40, in the opposite direction of clockwise.
  • the lever 48 also has a bearing surface 54 for driving the counter-pawl 36 when the mechanical opening of the lock is engaged, as explained below with reference to FIGS. 4 and 5.
  • the lever 48 also has a light 56, of which the function will appear in the description that follows.
  • a spring not shown recalls the lever 48 to its closed position shown in the figure, in the direction of clockwise.
  • Figure 2 shows under reference 58 an electric opening motor of the lock.
  • the motor 58 drives in translation along the vertical axis of Figure 1 a drive arm 60.
  • the motor is electrically powered by the main electrical circuit of the vehicle; it is dimensioned to allow the opening of the lock and the door under normal operating conditions.
  • the motor 58 it is typical to use a DC motor with a power of 40 Watts electric and a no-load speed of the order of 12,500 rpm.
  • the lock has a hold 62 opening authorization.
  • This shim 62 is mounted at the end of an arm 64.
  • the arm has a pin 66, which engages in the slot 56 of the lever.
  • a spring 68 biases the arm 64 to the left in FIG. 2.
  • the post 66 bears against the left end. light 56, under the effect of the bias of the spring 68; the arm 64 and the shim 62 are then brought to the right by the lever and spaced apart from the first bearing surface 42 of the pawl and the driving arm 60.
  • the lever 48 rotates about the axis 40 counterclockwise, as shown in Fig. 3.
  • the spring 68 biases the arm 64 to the left, and the shim 62 is positioned between the first bearing 42 against the pawl and the drive arm 60.
  • the wedge allows the triggering of the motor excitation 58 by coming to close a contact; its position between the arm 60 and the first seat 42 of the pawl allows the opening of the door by excitation of the motor 58.
  • the cylindrical or rounded shape of the shim 62 facilitates the release of the shim under the effect of the return spring of the lever 48, in the case where the drive arm 60 is locked in the position shown in FIG. 4.
  • the release of the wedge avoids in this case that the lock is locked in an open position.
  • FIG. 2 finally shows the elements of the clutch mechanism of the mechanical opening of the lock.
  • This mechanism comprises an arm 70, which is rotatably mounted about a third axis 72.
  • the movement of the arm 70 about the axis 72 is controlled by a backup engine 74 operating at very low load.
  • the motor makes it possible to turn the arm 70 in one direction or the other, for the reasons explained below.
  • On the arm 70 is mounted a mechanical clutch finger 76.
  • the emergency engine 74 causes the rotation of the arm 70 in the opposite direction of clockwise, the end 78 of the finger 76 is interposed between the bearing 54 of the lever 48 and the second bearing 44 of the counter-pawl.
  • the reference 80 designates a member for guiding the end 78 of the finger 76.
  • the finger 76 is rotatably mounted on the arm 70, so as to allow its end 78 to turn about the second axis 40 at the same time as the lever and the counter-ratchet.
  • a first contact is provided at the outer opening control and is activated when the user manipulates this command.
  • a second contact is actuated by the opening clearance 62, when it is interposed between the arm 60 and the first bearing 42 of the pawl.
  • An open door contact has two states representative of the open or closed state of the door.
  • FIG 3 This figure shows the movement of the lever, in case of action on the outer (respectively inner) opening control.
  • the cable or the rod 50 (respectively 52) transmits the movement of the opening control lever, which rotates about the second axis 40, as shown by the arrow 90 (respectively 92).
  • the opening authorization block 62 is driven to the left of Figure 2, as shown by the arrow 94; it comes to interpose between the arm 60 and the first bearing 42 of the counter-pawl. At the end of the race, she comes to activate the second contact.
  • Figure 3 still shows the movement of the arm 60 under the action of the motor 58.
  • the lever 48 is shown behind the pawl and against-ratchet.
  • Activation of the second contact by the shim 62 causes the excitation of the motor 58, which drives the arm 60 towards the shim 62 and the first reach of the counter-catch, as represented by the arrow 96.
  • the pawl and the counter-pawl are rotated about the second shaft 40, in the opposite direction of clockwise; this rotational movement is represented in FIG. 3 by the arrow 98.
  • the open door contact changes state; the motor 58 is controlled to raise the arm 60; the shim 62 is released and the lever 48 returns to the position of Figure 2 on release of the outer opening control.
  • the pawl is biased towards the position of Figure 2, so that the closing of the door brings the bolt and the pawl in the position of Figure 2.
  • Figures 4 and 5 show views of the lock of Figure 2, showing the movement of the various parts of the lock during the mechanical opening of the lock.
  • the mechanical opening is controlled by the unlocking signal emitted by the circuit 10, when the power supply of the vehicle is faulty.
  • Figure 4 shows a view of the lock after powering the emergency engine 74 to engage the mechanical opening of the lock; as shown in the figure, the triggering of the emergency engine 74 causes the rotation of the arm 70 about the axis 72, in the opposite direction of clockwise as symbolized in FIG. 4 by the arrow 102. Because of this rotation, the mechanical clutch finger moves towards the lever 48 and against the pawl 36. The presence of the guide member 80 assists that the end 78 of the finger comes to interpose between the scope 54 of the lever 48 and the second bearing 44 of the counter-catch. In the position of Figure 4, the mechanical opening of the lock is engaged, insofar as the actuation of the outer or inner opening control causes the opening of the lock, independently of the motor 58, as explained in FIG. reference to Figure 5.
  • the motor 74 is simply sized to allow the rotation of the arm 70 and the movement of the finger 76; therefore, this motor can be sized for a low load; we can typically use for the engine 74 a DC motor 10 watt power and no-load speed of the order of 4,000 to 6,000 rpm.
  • power is the simple product of the setpoint voltage by the intensity of the engine at startup; this value is not representative of the average power consumed by the engine (the ratio between the energy consumed by the motor during the rotation of the arm 40 and the duration of this rotation). In practice, the average power consumed by the engine is of the order of 1 W.
  • the emergency power supply 18 can be compact and inexpensive , as indicated above.
  • Figure 5 shows a view of the lock during a mechanical opening.
  • An action on the inner opening control or on the outer opening control causes the lever 48 to rotate. Due to the presence of the end 78 of the finger between the bearing surface 54 of the lever 48 and the second bearing surface 44 of the counter -cliquet, the rotation of the lever 48 causes the rotation of the counter-pawl 36 is the opening of the bolt; the movement of the ratchet and bolt assembly is similar to that described above and is not detailed again.
  • the arrows 104 and 106 representative of the rotational movement of the ratchet assembly 36-38 and of the bolt 32 have been shown.
  • FIGS. 108 and 110 representative of the rotation of the lever 48 under FIG. action of the outer or inner opening control, which causes rotation of the ratchet assembly.
  • the locking or unlocking of the lock can be provided purely by software. It suffices to condemn the lock not to trigger the motor 58, even when the contact of the shim 62 is switched. The lock is unlocked by allowing the motor to trip by the contact of the cleat.
  • the unlocking signal emitted by the circuit 10 is therefore simply transmitted to the main electronics of the door, which authorizes the software unlocking.
  • the unlocking signal transmitted by the circuit 10 controls the emergency engine of the lock, to engage the mechanical opening as shown in Figure 4.
  • the unlocking mechanism is then formed of the arm 70, the engine of rescue 74 and the finger 76.
  • the motor 74 can be powered by the power supply 18, which ensures a unlocking even in the event of a failure of the main power supply of the vehicle.
  • FIG. 6 shows another example of a lock that can be used in the system of FIG. 1.
  • This lock is similar to that of FIGS. 2 to 5; however, instead of providing only one clutch for the outer and inner opening controls, a mechanical linkage for the inner opening control and an electrical connection for the outer opening control is used.
  • Figure 6 shows a schematic view of the lock in a closed and super-locked position. The elements of the lock that are similar to those of Figure 2 have the same references and are not described again.
  • the bolt 32, the lever 48, the inner opening cable or rod 52, the pawl 36, the pawl 38, the electric opening motor 58 with its drive arm 112, the arm 70, are thus recognized.
  • the motor 74, the clutch finger 76 and the guide member 80 are thus recognized.
  • the lock of FIG. 6 does not have an opening authorization wedge with the arm and the tenon.
  • the drive arm 112 of the motor 58 bears directly on the first bearing surface 42 of the counter-catch 36 when the motor 58 is actuated.
  • the shape of the drive arm 112 of the motor 58 is slightly different in FIG. 6, compared with FIG. 1, because of the absence of the opening authorization wedge; more precisely, the arm 112 has a dimension, in its direction of displacement, substantially equal to the sum of the dimensions of the arm 60 and the shim 62; this makes it possible not to modify the stroke of the motor 58 to ensure the opening, that is to say to use in the example of FIG. 6 the same motor as in the lock of FIG. 2.
  • the lock has no cable or external opening rod 50.
  • the lever 48 is identical to that of FIGS. 2 to 5, but understand that we could do without the light and the part used to receive the outer opening cable.
  • the mechanical opening of the lock of Figure 6 can be engaged; in this state, an action on the inner opening control causes the mechanical opening of the lock.
  • the clutch of the mechanical opening is effected, as shown in FIG. 4, by lowering the finger 76 with the aid of the motor 74.
  • the end 78 of the finger comes between the second bearing surface 44 of the counter-catch 36 and in this state, when the internal opening control is actuated, it causes via the cable 52 the rotation of the lever 48 about the axis 40.
  • the rotation of the lever 48 is transmitted against the pawl 36 through the end 78 of the finger 76.
  • the rotation of the pawl 36 and the pawl 38 allows the rotation of the bolt 32, similar to that shown in Figure 5.
  • the lock of the figure works as follows.
  • the opening of the lock from the external opening control is electric and is effected by triggering the motor 58, so that the drive arm 112 causes the counter-pawl 36 to rotate. No cable or cable is provided. rod to the lever.
  • the locking and unlocking of the lock are purely software operations, which do not involve any element mechanical. The risk of self-opening is not managed as in the example of Figures 2 to 5 by a clutchable and disengageable electrical opening.
  • the opening of the lock from the inner opening control is a mechanical opening.
  • the finger 76 In the condemned, super-condemned or child-safe state, the finger 76 is in the raised position of FIG. 6; an action on the inner opening control moves the lever 48, but has no effect on the pawl and counter-pawl.
  • the finger 76 When the lock is unlocked, in the absence of child safety, the finger 76 is in the low position. Actuation of the inner opening control 76 acts on the counter-catch and the pawl to cause the opening of the lock.
  • the lock is therefore a lock with purely electric external opening, purely mechanical interior opening, with mechanical links disengageable for super-conviction or for child safety.
  • the lock of Figure 6 reduces the problem of diversity and limit the need for a backup power in the door.
  • the lock of Figure 6 also simplifies the door structure, insofar as it does not involve mechanical links between the outer opening control and the lock. It would also be possible using other sensors than the sensor of the outer opening control described in the example, to completely do without external opening control.
  • the unlocking signal transmitted by the interrogation circuit of the object thus causes a software unlocking of the electrical opening of the lock. This can for example be triggered when the user approaches the vehicle or manipulates the external opening command.
  • the unlocking signal further causes the clutch to engage the mechanical opening of the lock from the inner opening control; in other words, the unlocking mechanism formed of the motor 74, the arm 70 and the finger 76 is actuated to allow the mechanical opening of the lock from the inner opening control.
  • the lock of Figure 6 reduces the problem of diversity and limit the need for a backup power in the door. It also simplifies the structure of the doors, insofar as it does not involve mechanical links between the external opening control and the lock. It would also be possible using other sensors than the sensor of the outer opening control described in the example, to completely do without external opening control.
  • the unlocking signal may not cause unlocking of the mechanical opening from the inner opening control; this ensures that a door in the state "child safety" remains in this state even when the interrogation circuit emits a signal of unlocking.
  • the finger 76 is between the bearing surfaces 44 and 54 in the rest position. This avoids having to provide in the door an emergency power supply for the motor 74. Indeed, if the finger 76 in the rest position is in the up position, it is preferable to have in the vehicle door an emergency power supply - battery, capacity or other - likely to allow, in case of accident, a clutch mechanical links. Conversely, if the finger 76 is at rest in the low position, it is possible to super-lock the lock or provide child safety from the start of the vehicle, without providing emergency power; it is sufficient for this purpose, using the battery of the vehicle, to raise the finger 76.
  • this lock As an alternative to that described with reference to FIG. 6, it would be possible for this lock, as in the example of FIGS. 2 to 5, to provide an electric opening by the motor 58, triggered by the movement of the control unit. opening inside or by the movement of the lever. In this case, actuation of the inner opening control would have the effect of triggering the electrical opening.
  • This solution provides an electric opening of the lock from the inner opening control. It has the disadvantage of imposing an emergency power supply to lower the finger 76 in the event of failure of the electrical opening, to allow the mechanical opening of the lock at least since the internal opening control; since such a power supply is provided for the interrogation circuit, it is not really a disadvantage. If an electric opening is thus provided from the internal opening control, the unlocking signal transmitted from the interrogation circuit has also for the internal opening control the effect of allowing the motor 58 to trip; it does not cause the descent of the finger 76.
  • Another alternative is to provide an electrically assisted opening from the inner opening control.
  • the finger 76 when the lock is unlocked, in the absence of super-conviction or child safety, the finger 76 is in the low position.
  • An action on the inner opening control causes the lever to move and triggers opening by the motor.
  • This solution presents the disadvantages of an assisted mechanical opening, in particular the risks during a sudden actuation of the internal opening control. It also avoids providing an emergency power supply in the door and makes it possible to use only a motor 74 of very low power to actuate the finger 76.
  • the unlocking signal transmitted by the interrogation circuit allows the triggering the motor 58 during an action on the inner opening control, but also causes the descent of the finger 76.
  • this emergency power supply can supply the interrogation circuit of the vehicle and / or the clutch of the mechanical opening of the lock.
  • this emergency power supply can supply the interrogation circuit of the vehicle and / or the clutch of the mechanical opening of the lock.
  • a backup power supply it is possible, in the event of a vehicle battery failure, to cause the clutch of the mechanical opening and thus to allow the mechanical opening of the lock, either through the control of outer opening and inner opening control (in the example of Figures 2 to 5), or through the inner opening control (in the example of Figure 6).
  • the necessary energy remains in all cases quite low, insofar as it is only to engage the mechanical opening and not to actually open the lock. If it is thus possible to clutch the mechanical links from the emergency power supply, sensors can be used on the internal opening control or on the external opening control to wake up the interrogation circuit electronics or the associated with the lock, in case of failure of the main battery of the vehicle.
  • Such emergency electronics can also provide a backup electronics, using only a low power and has only a limited number of functions, including the clutch mechanical opening.
  • Such emergency electronics is connected to the main battery of the vehicle, or at the very least receives a signal representative of the power supply by the main battery of the vehicle.
  • the emergency electronics are powered by the emergency power supply and are able to scan the status of the sensors on the internal opening control or the external opening control or to receive signals representative of the state of these sensors.
  • the backup electronics are inactive as long as the vehicle's battery provides power. If the vehicle battery stops supplying a voltage supply, the emergency electronics are awakened by the signals from the sensors. It can then engage the mechanical opening.
  • the alarm clock of the electronics of Rescue signals from the sensors ensure that the emergency electronics, under normal conditions of use, do not consume power from the back-up power supply.
  • the backup electronics can be performed on a printed circuit including the emergency power supply.
  • the emergency electronics then comprises a logic circuit capable of analyzing the signals received from the sensors, a switch capable of supplying the clutch of the mechanical opening from the emergency power supply.
  • the invention is not limited to the embodiments described by way of example.
  • other portable objects can be used than a transponder; the schematic descriptions of Figure 1 do not exclude implementations in which the functions are performed differently.
  • the invention is described in its application to the unlocking of a door; it applies more generally to any opening of the vehicle - including the opening of the trunk.
  • the simplest case in which the interrogation circuit provides a unlocking signal to the lock of an opening of the vehicle has been described. It is also possible that the interrogation circuit provides a unlocking signal to more than one lock, for example to all the locks of the vehicle in normal operation.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Claims (14)

  1. System zum Entriegeln einer Tür bzw. Öffnung eines Automobilfahrzeugs ohne Klinke, umfassend:
    - ein Schloss zum elektrischen Öffnen und zum einkuppelbaren mechanischen Öffnen,
    - einen Kupplungsmechanismus, welcher ausgestaltet ist, das mechanische Öffnen im Fall eines Ausfalls des elektrischen Öffnens einzukuppeln,
    - ein ein Identifikationsmittel aufweisendes tragbares Objekt (2),
    - eine Schaltung (10) zur Abfrage des Objekts, welche ausgestaltet ist, das Objekt zu versorgen und es abzufragen, während es außerhalb des Fahrzeugs ist, und welche ausgestaltet ist, dem Schloss abhängig von dem Identifikationsmittel ein Signal zuzuführen, welches die Entriegelung der Öffnung des Fahrzeugs autorisiert, wobei das unter den Bedingungen des Ausfalls der elektrischen Versorgung des Fahrzeugs zugeführte Signal ein Signal zum Einkuppeln des mechanischen Öffnens des Schlosses ist.
  2. System nach Anspruch 1, dadurch gekennzeichnet, dass das unter normalen Bedingungen zugeführte Signal ein Softwareentriegelungssignal zum elektrischen Öffnen des Schlosses ist.
  3. System nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Abfrageschaltung (10) das tragbare Objekt (2) über eine Distanz zur Abfrage versorgt.
  4. System nach einem der Ansprüche 1-3, dadurch gekennzeichnet, dass das tragbare Objekt (2) Kontakte aufweist und dass die Abfrageschaltung (10) Kontakte aufweist, welche angepasst sind, mit den Kontakten des tragbaren Objekts zu koppeln.
  5. System nach einem der Ansprüche 1-4, gekennzeichnet durch eine von der Hauptversorgung des Fahrzeugs unterschiedliche Sicherheitsversorgung (18).
  6. System nach Anspruch 5, dadurch gekennzeichnet, dass die Abfrageschaltung (10) durch die Sicherheitsversorgung (18) versorgt wird.
  7. System nach einem der Ansprüche 1-6, gekennzeichnet durch eine Entriegelungsmechanik, welche das Entriegelungssignal von der Abfrageschaltung (10) empfängt.
  8. System nach Anspruch 5 und 7, dadurch gekennzeichnet, dass die Entriegelungsmechanik mit der Sicherheitsversorgung (18) verbunden ist.
  9. System nach einem der Ansprüche 5-8, dadurch gekennzeichnet, dass es eine Sicherheitselektronik umfasst, welche durch die Sicherheitsversorgung versorgt wird und welche ausgelegt ist, das mechanische Öffnen des Schlosses einzukuppeln.
  10. System nach Anspruch 9, dadurch gekennzeichnet, dass die Sicherheitselektronik einen Überwachungszustand aufweist, den sie beim Empfang eines Signals verlässt, welches von einem Betätigungssensor einer internen Öffnungssteuerung oder einer externen Öffnungssteuerung herrührt.
  11. System nach einem der Ansprüche 7-10, dadurch gekennzeichnet, dass zusätzlich ein Schloss zum elektrischen Öffnen und zum durch die Betätigung der Entriegelungsmechanik (20) einkuppelbaren mechanischen Öffnen umfasst.
  12. System nach Anspruch 11, dadurch gekennzeichnet, dass die Entriegelungsmechanik einen elektrischen Motor mit einer elektrischen Leistung kleiner als 10 W umfasst.
  13. Eine Öffnung ohne Klinke, welche ein System nach einem der Ansprüche 1-12 aufweist.
  14. Fahrzeug, welches eine Öffnung ohne Klinke und ein System nach einem der Ansprüche 1-12 aufweist.
EP20030290301 2002-02-12 2003-02-06 Entriegelungssystem einer Kraftfahrzeugöffnung Expired - Lifetime EP1335330B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0201698A FR2835866B1 (fr) 2002-02-12 2002-02-12 Systeme de decondamnation d'ouvrant de vehicule automobile
FR0201698 2002-02-12

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EP1335330A2 EP1335330A2 (de) 2003-08-13
EP1335330A3 EP1335330A3 (de) 2004-02-04
EP1335330B1 true EP1335330B1 (de) 2006-04-26

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US (1) US7224259B2 (de)
EP (1) EP1335330B1 (de)
JP (1) JP2003262054A (de)
DE (1) DE60304751T2 (de)
FR (1) FR2835866B1 (de)

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Also Published As

Publication number Publication date
DE60304751D1 (de) 2006-06-01
FR2835866A1 (fr) 2003-08-15
US7224259B2 (en) 2007-05-29
US20030155779A1 (en) 2003-08-21
EP1335330A3 (de) 2004-02-04
DE60304751T2 (de) 2007-05-03
EP1335330A2 (de) 2003-08-13
JP2003262054A (ja) 2003-09-19
FR2835866B1 (fr) 2004-08-20

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